Update other unittests to use newly added TestingBrowserProcess::GetGlobal().

chrome/browser/signin/signin_manager_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/signin/signin_manager.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/compiler_specific.h"
 #include "base/stringprintf.h"
@@ skipping 29 matching lines @@
     "}";
 
 }  // namespace
 
 
 class SigninManagerTest : public TokenServiceTestHarness {
  public:
   virtual void SetUp() OVERRIDE {
     prefs_.reset(new TestingPrefServiceSimple);
     chrome::RegisterLocalState(prefs_.get());
-    static_cast<TestingBrowserProcess*>(g_browser_process)->SetLocalState(
+    TestingBrowserProcess::GetGlobal()->SetLocalState(
         prefs_.get());
     TokenServiceTestHarness::SetUp();
     manager_.reset(new SigninManager());
     google_login_success_.ListenFor(
         chrome::NOTIFICATION_GOOGLE_SIGNIN_SUCCESSFUL,
         content::Source<Profile>(profile_.get()));
     google_login_failure_.ListenFor(chrome::NOTIFICATION_GOOGLE_SIGNIN_FAILED,
                                     content::Source<Profile>(profile_.get()));
   }
 
   virtual void TearDown() OVERRIDE {
     // Destroy the SigninManager here, because it relies on profile_ which is
     // freed in the base class.
     manager_.reset(NULL);
-    static_cast<TestingBrowserProcess*>(g_browser_process)->SetLocalState(NULL);
+    TestingBrowserProcess::GetGlobal()->SetLocalState(NULL);
     prefs_.reset(NULL);
     TokenServiceTestHarness::TearDown();
   }
 
   void SetupFetcherAndComplete(const std::string& url,
                                int response_code,
                                const net::ResponseCookies& cookies,
                                const std::string& response_string) {
     net::TestURLFetcher* fetcher = factory_.GetFetcherByID(0);
     DCHECK(fetcher);
@@ skipping 408 matching lines @@
 
   manager_->ProvideOAuthChallengeResponse(
       GoogleServiceAuthError::CAPTCHA_REQUIRED, "token", "solution");
 
   SimulateProvideOAuthChallengeResponseValid();
   EXPECT_EQ("user@gmail.com", manager_->GetAuthenticatedUsername());
 
   EXPECT_EQ(1U, google_login_success_.size());
   EXPECT_EQ(1U, google_login_failure_.size());
 }